$OpenBSD: patch-physmap_c,v 1.1 2017/05/18 15:29:35 sthen Exp $

Index: physmap.c
--- physmap.c.orig
+++ physmap.c
@@ -277,9 +277,8 @@ static void *physmap_common(const char *descr, uintptr
 			msg_perr("disabling the other option unfortunately requires a kernel recompile. Sorry!\n");
 		}
 #elif defined (__OpenBSD__)
-		msg_perr("Please set securelevel=-1 in /etc/rc.securelevel "
-			 "and reboot, or reboot into\n"
-			 "single user mode.\n");
+		msg_perr("Please reboot into single user mode (preferred), or set\n"
+			 "sysctl kern.securelevel=-1 in /etc/rc.securelevel.\n");
 #endif
 		return ERROR_PTR;
 	}
